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China GB ZM7 铸造镁合金 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ZM7 / ZM7
Category Grade Standard Region/Area Standard Content
Metals ZM7 GB/T 1177 China 铸造镁合金

Chemical composition(mass fraction)(wt.%) of the ZM7

Element Min Max Similar

Mechanical Properties of steel grade ZM7

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
154 (≥) 473 (≥) 13 43 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade ZM7

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
44 - -     0.41 -  
465 888 - 33.3 114   -  
968 - 43 33.2   241 314

Heat Treatment of steel grade ZM7

Heat treated : 1566°C - 1773°C

Technological Curves of steel grade ZM7

Cross Reference Table (Equivalent Grade) of ZM7

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